
11 | Repair
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Operating instructions CMVpro 125-400 | Version 1-en
3.
Compare distance X with value from table.
Set impeller position:
1.
Remove inlet cover and hub cap.
2.
Loosen clamping adapter.
3.
Temporarily mount the inlet cover for alignment.
4.
Push impeller onto motor shaft to distance X specified in the table.
5.
Tighten clamping adapter to specified tightening torque.
6.
Check impeller mobility.
7.
Press new hub cap onto hub.
8.
Assemble fan.
9.
Conduct test run
_
48].
For necessary removal and mounting work, see
_
61] for mount-
ing instructions.
11.9
Hub seal (option) replacement
Procedure:
1.
Remove impeller
_
61].
2.
Remove hub seal from seal
casing using tweezers (see
detail).
3.
Lubricate new hub seal:
• Saturate bearing sur-
face of motor shaft with
Teflon spray.
4.
Insert new hub seal in seal
casing.
• Order the hub seal as a
wear part in a timely
manner.
5.
Assemble fan
_
61], mount-
ing instructions.
Fig. 40:
Inserting hub seal